
生成提供 etcd 服务所需的证书
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Generates the certificate for serving etcd
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### Synopsis
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### 概要

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Renews the certificate for serving etcd, and saves them into etcd/server.cert and etcd/server.key files. 
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更新提供 etcd 服务所需的证书并将它们保存到 etcd/server.cert 和 etcd/server.key 文件中。

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Extra attributes such as SANs will be based on the existing certificates, there is no need to resupply them.
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额外的属性（如 SANs）将基于现有的证书完成设置，不需要重新提供。

```
kubeadm alpha phase certs renew etcd-server [flags]
```

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### Options
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### 选项

<table style="width: 100%; table-layout: fixed;">
  <colgroup>
    <col span="1" style="width: 10px;" />
    <col span="1" />
  </colgroup>
  <tbody>

    <tr>
      <td colspan="2">--cert-dir string&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;默认值： "/etc/kubernetes/pki"</td>
    </tr>
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      <td colspan="2">--cert-dir string&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Default: "/etc/kubernetes/pki"</td>
-->
    <tr>
      <td></td><td style="line-height: 130%; word-wrap: break-word;">证书的保存路径</td>
    </tr>
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      <td></td><td style="line-height: 130%; word-wrap: break-word;">The path where to save the certificates</td>
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    <tr>
      <td colspan="2">--config string</td>
    </tr>
    <tr>
      <td></td><td style="line-height: 130%; word-wrap: break-word;">kubeadm 配置文件的路径（警告：配置文件的使用是实验性的）</td>
    </tr>
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      <td></td><td style="line-height: 130%; word-wrap: break-word;">Path to kubeadm config file (WARNING: Usage of a configuration file is experimental)</td>
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    <tr>
      <td colspan="2">-h, --help</td>
    </tr>
    <tr>
      <td></td><td style="line-height: 130%; word-wrap: break-word;">etcd-server 的帮助信息</td>
    </tr>
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      <td></td><td style="line-height: 130%; word-wrap: break-word;">help for etcd-server</td
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    <tr>
      <td colspan="2">--kubeconfig string&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;默认值： "/etc/kubernetes/admin.conf"</td>
    </tr>
<!--
      <td colspan="2">--kubeconfig string&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Default: "/etc/kubernetes/admin.conf"</td>
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    <tr>
      <td></td><td style="line-height: 130%; word-wrap: break-word;">用于和集群通信的 KubeConfig 文件。如果它没有被设置，那么 kubeadm 将会搜索一个已经存在于标准路径的 KubeConfig 文件。</td>
    </tr>
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     <td></td><td style="line-height: 130%; word-wrap: break-word;">The KubeConfig file to use when talking to the cluster. If the flag is not set, a set of standard locations are searched for an existing KubeConfig file.</td>
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    <tr>
      <td colspan="2">--use-api</td>
    </tr>
    <tr>
      <td></td><td style="line-height: 130%; word-wrap: break-word;">使用 Kubernetes 证书 API 更新证书</td>
    </tr>
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      <td></td><td style="line-height: 130%; word-wrap: break-word;">Use the Kubernetes certificate API to renew certificates</td>
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  </tbody>
</table>


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### Options inherited from parent commands
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### 从父命令继承的选项

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  <colgroup>
    <col span="1" style="width: 10px;" />
    <col span="1" />
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  <tbody>

    <tr>
      <td colspan="2">--rootfs string</td>
    </tr>
    <tr>
      <td></td><td style="line-height: 130%; word-wrap: break-word;">[实验] 到'真实'主机根文件系统的路径。</td>
    </tr>
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      <td></td><td style="line-height: 130%; word-wrap: break-word;">[EXPERIMENTAL] The path to the 'real' host root filesystem.</td>
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  </tbody>
</table>



